Sean Hannity early Friday escalated his Twitter battle with Sen. Ben Sasse, unleashing five tweets that called the Nebraska Republican a #loser and said he's "done nothing in DC."

The Fox News primetime host and top advocate of President Donald Trump has been engaged with Sasse this week since the senator, part of the Never Trump Republicans, rebuked the president for his attacks on NBC News, accusing him of "recanting his oath" to protect the first amendment.

Then Thursday, Sasse tweeted this at Hannity:

Sorry, Sean -- you changed, not me. Some of us still believe in the Constitution. No President should play with censoring news they dislike. https://t.co/ZBEMNSF7nz